Counterbore hole chamfer depth measuring apparatus and method
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United States of America Patent
Stats
-
Dec 25, 2012
Grant Date -
Dec 6, 2012
app pub date -
Aug 11, 2011
filing date -
Jun 3, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A measuring apparatus for measuring a counterbore hole chamfer depth of a workpiece, includes a positioning member having a guiding hole aligned with the counterbore hole of the workpiece, a support member having a receiving hole aligned with the guiding hole, and a measuring device supported by the support member. The measuring device includes a gauge, a retractable pole connected to the gauge and extending into the receiving hole, and a measuring head portion connected to the retractable pole and movably received in the guiding hole. The measuring head portion has a cone-shaped end for abutting on an inner wall of the counterbore hole chamfer, thereby making the measuring head portion move back in the guiding hole and the retractable pole retract. The gauge is configured for calculating and displaying the depth of the counterbore hole chamfer based on the distance the retractable pole retracts.
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